Cygnus Hex Editor - Version 2.00 This is the fastest and easiest hex editor available anywhere! Features include MDI interface, multi-level undo & redo, extensive drag & drop support, blazing fast and flexible search, search and replace, delete and insert characters as easily as you can in a word processor, edit files up to available virtual memory (up to 2GB). Newer features include intelligent file comparison, conversion routines, checksum calculation, import/export operations, and developers can now extend the program’s functionality by writing C/DLL extensions.